Table 2. Serum and Cerebrospinal Fluid Markers
| Tumor Type | Beta-HCG | AFP |
| AFP = alpha-fetoprotein; HCG = human chorionic gonadotropin; + = positive; - = negative; ± = equivocal; +++ = strongly positive; (±) equivocal, not diagnostic; (+) = positive, not diagnostic. | ||
| Choriocarcinoma | +++ | - |
| Embryonal carcinoma | - | - |
| Germinoma | (±) | - |
| Teratoma | - | (+) |
| Yolk sac tumor | - | +++ |
